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Impact, healthcare utilization and costs of travel-associated mosquito-borne diseases in international travellers: a prospective study.
J Travel Med
November 2023
J.D. MacLean Centre for Tropical Diseases, Montreal, Quebec, Canada.
Background: International travellers frequently acquire infectious diseases whilst travelling, yet relatively little is known about the impact and economic burden of these illnesses on travellers. We conducted a prospective exploratory costing study on adult returning travellers with falciparum malaria, dengue, chikungunya or Zika virus.
Methods: Patients were recruited in eight Travel and Tropical Medicine clinics between June 2016 and March 2020 upon travellers' first contact with the health system in their country of residence.
Geographic clustering of travel-acquired infections in Ontario, Canada, 2008-2020.
PLOS Glob Public Health
March 2023
Division of Infectious Diseases, The Hospital for Sick Children, Toronto, ON, Canada.
As the frequency of international travel increases, more individuals are at risk of travel-acquired infections (TAIs). In this ecological study of over 170,000 unique tests from Public Health Ontario's laboratory, we reviewed all laboratory-reported cases of malaria, dengue, chikungunya, and enteric fever in Ontario, Canada between 2008-2020 to identify high-resolution geographical clusters for potential targeted pre-travel prevention. Smoothed standardized incidence ratios (SIRs) and 95% posterior credible intervals (CIs) were estimated using a spatial Bayesian hierarchical model.
View Article and Find Full Text PDFSevere dengue in travellers: pathogenesis, risk and clinical management.
J Travel Med
October 2019
Department of Disease Control, London School of Hygiene and Tropical Medicine, London, UK.
Rationale For Review: Dengue is a frequent cause of febrile illness among travellers and has overtaken malaria as the leading cause of febrile illness for those traveling to Southeast Asia. The purpose is to review the risk of dengue and severe dengue in travellers with a particular focus on the pathogenesis and clinical management of severe dengue.
Risk, Pathogenesis And Clinical Management: The risk of travel-acquired dengue depends on destination, season and duration of travel and activities during travel.
Could exotic mosquito-borne diseases emerge in Canada with climate change?
Can Commun Dis Rep
April 2019
National Microbiology Laboratory, Public Health Agency of Canada, Guelph, ON, St. Hyacinthe, QC and Winnipeg, MB.
Of the 3,500 species of mosquitoes worldwide, only a small portion carry and transmit the mosquito-borne diseases (MBDs) that cause approximately half a million deaths annually worldwide. The most common exotic MBDs, such as malaria and dengue, are not currently established in Canada, in part because of our relatively harsh climate; however, this situation could evolve with climate change. Mosquitoes native to Canada may become infected with new pathogens and move into new regions within Canada.
View Article and Find Full Text PDFTravel-acquired Scrub Typhus Infection Masked by Dengue Fever in a Patient from Nonendemic Area.
J Glob Infect Dis
January 2018
Department of Hematology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
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